Astronomers discovered five Green Pea galaxies with double-peaked narrow lines among nearly 1550 Green Pea galaxies. The study suggests that these objects may originate from dual AGN mergers, potentially revealing the co-evolutionary characteristics of a special class of high-mass galaxies and supermassive black holes.
07 31, 2023
Recently, the Group of Satellite Navigation and Remote Sensing, led by Prof. Shuanggen Jin from Shanghai Astronomical Observatory, Chinese Academy of Sciences, investigated seasonal signals by the Earth’s surface loads using space geodetic observations. They studied displacements from Global Navigation Satellite System (GNSS) and ...
07 24, 2023
An international team of scientists led by Dr. Ru-Sen Lu from the Shanghai Astronomical Observatory (SHAO) has used new millimetre-wavelength observations to produce an image that shows, for the first time, both the ring-like structure that reveals the matter falling into the central black hole and the powerful relativistic jet in ...
04 27, 2023
Recently, a research team successfully detected radio recombination lines (RRLs) of ions heavier than helium for the first time using the TianMa 65-m Radio Telescope (TMRT), operated by the Shanghai Astronomical Observatory (SHAO). Those lines were assigned to carbon and/or oxygen ions allowing measurements of elemental abundances ...
03 02, 2023
Recently, astronomers from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences used a sample of emission line galaxies in the COSMOS field with two-epoch narrowband imaging separated by 12 years to study their optical variability. Only a small fraction of galaxies was found showing optical variability. Such var...
12 01, 2022
Recently, researchers led by Dr. KONG Dali and Ph.D. student LI Wenbo from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences (CAS) carried out linear onset analysis for thermal inertial convection in oblate spheroidal cavities, elucidating how thermal convection takes place in extremely rapidly rotatin...
11 01, 2022
A research team from Shanghai Astronomical Observatory (SHAO) has recently completed a deep Q-band line scanning survey towards Orion KL using the Tianma 65 m radio telescope (TMRT), achieving the widest frequency coverage (35--50 GHz) and the highest sensitivity (~mK) spectra so far. In total, about 600 emission lines were detecte...
11 10, 2022
Astronomers studying stellar nurseries, the birthplace of stars in our galaxy, have found that nearly half of stars in the Galaxy are formed in binary/multiple stellar systems (think twins, triplets, quadruplets)
07 12, 2022
Recently, an international team including Prof. Tao An from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences (CAS) found evidence of periodic instability in the accretion disk of the nearby galaxy NGC4258 through the space VLBI observations of water masers. The observational results were obtained on the basi...
07 06, 2022
Dr. Xing Lu, an associate researcher from Shanghai Astronomical Observatory, Chinese Academy of Sciences, together with his collaborators from Yunnan University, Harvard-Smithsonian Center for Astrophysics, and Max Planck Institute, have used high resolution observational data from the Atacama Large Millimeter/submillimeter Array (...
05 30, 2022
Recently , an international group led by Juan Li and Junzhi Wang from Shanghai Astronomical Observatory ( SHAO ) .Detected propionamide ( C2H5CONH2 ) toward Sagittarius B2 ( Sgr B2 ) for the first time with the Atacama Large Millimeter/submillimeter Array ( ALMA ) .This is the largest peptide-like molecule detected in space .The st...
09 23, 2021
Active Galactic Nuclei ( AGN ) is a very special class of extragalactic objects .Quasars are extremely bright AGNs . Quasars can be divided into radio quiet and radio loud quasars according to the ratio of radio intensity relative to optical intensity of quasars .How the black hole at the center of the active galaxy affects its hos...
04 15, 2021
Stars are known to form in so-called “ molecular clouds ” .Collections of cold gas and dust in the space between stars .These stellar nurseries can contain a number of dense clumps of gas and dust called “ prestellar cores " .Research has suggested that these cores are expected to exhibit concentrated structures within them - th...
02 22, 2021
Jets are ubiquitously in association with different celestial objects .The longest jet can reach a range 10 billion times longer than its initial radius , and the maximum jet velocity can reach up to 99.99% of the speed of light .The process of how jet launching , acceleration and collimation is one of the main unsolved problems in...
02 08, 2021
The Milky Way (MW), the Galaxy that we reside in, contains many mysteries. Astronomical observations have provided strong evidence that the Galaxy is dominated by dark matter, while the normal matter, the baryons, only accounts for a small fraction of about 6% of the total gravitating matter, which is even significantly lower than ...
12 17, 2020
